Finding the Third Proportional to 187,446 and 404,830

Step by Step Solution

1. Step 1: Write the proportion equation
   187,446 : 404,830 = 404,830 : x
2. Step 2: Convert to fraction form
   187,446/404,830 = 404,830/x
3. Step 3: Cross multiply
   187,446x = 404,830 × 404,830
4. Step 4: Simplify right side
   187,446x = 163,887,328,900
5. Step 5: Solve for x
   x = 163,887,328,900/187,446
6. Step 6: Final answer
   x = 874,317.56